山东半岛浅海表层沉积物中有用矿物的分布及其成矿潜景  

THE DISTRIBUTION OF ECONOMIC MINERALS IN SURFACE SEDIMENTS OFF THE SHANDONG PENINSULA AND ITS ECONOMIC PERSPECTIVE

作　　者：王昆山[1] 朱志伟[1] 刘季花[1] 黄朋[2] 

机构地区：[1]国家海洋局第一海洋研究所海洋沉积与环境地质国家海洋局重点实验室,青岛266061 [2]中国科学院海洋研究所,青岛266071

出　　处：《海洋地质与第四纪地质》2015年第4期11-20,共10页Marine Geology & Quaternary Geology

基　　金：山东省"908"项目(SD908-02-06);国家海洋局"908"专项项目(908-02-02-05)

摘　　要：基于国家"908"和山东省"908"对黄渤海近海海域沉积物调查成果,对山东半岛浅海碎屑矿物的区域分布特征进行了研究。首先根据粒度分析资料,对山东半岛浅海建筑砂砾的分布特征和成矿特征进行了研究,其次对沉积物中5种有用重矿物(铁钛矿物、石榴石、锆石、榍石、电气石)品位进行了计算,对其异常等级进行了划分;圈定了异常面积,计算了异常区表层沉积物中有用矿物储量。共圈定出18个建筑砂砾区,8个铁钛矿物高值区、6个锆石异常区、10个石榴石异常区、7个榍石异常区和3个电气石异常区。最终对山东半岛浅海进行了有用矿物综合评价,圈定出8个成矿远景区。Based on the results of marine sediments in the survey projects of national ＂908＂ and Shandong ＂908＂, the distribution pattern of detrital minerals of offshore sediments were studied. In addition to ma rine aggregates off Shandong Peninsula, special attention is paid to the 5 valuable heavy minerals i. e. iron titanium minerals, garnet, zircon, sphene, and tourmaline. Their contents and grades are calculated and a nomalies delineated. A total of 18 areas of marine aggregates, 8 anomalies of iron titanium minerals, 6 zircon anomalies, 10 garnet anomalies, 7 sphene anomalies, and 3 tourmaline anomalies have been discovered so far. Finally, 8 potential placer deposits are proposed for further investigation.

关 键 词：近海 沉积物 有用矿物 成矿潜景 山东半岛 

分 类 号：P736.2[天文地球—海洋地质]